Measurement result display device, measurement system, and measurement result display processing program

Abstract

To display a timewise change in measured impedance so as to be easily identifiable.SOLUTION: A measurement result display device comprises a processing unit that implements measurement result display processing of causing a display unit 5 to display a measurement result on the basis of measurement result data in which impedance measured by a measurement device is encoded. In the measurement result display processing, the processing unit is configured to cause the display unit 5 to display a measurement result display screen 20 of measurement result displays 21a to 21d (graph) having the impedance for each measurement result data lined in an order of measuring time on the basis of a plurality of pieces of measurement result data satisfying a pre-defined comparison condition and different in the measuring time of the impedance by the measurement device.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a measurement result display device capable of displaying measurement results on a display unit based on measurement result data in which impedance measured by a measuring device is encoded, a measurement system equipped with such a measurement result display device, and a measurement result display processing program that causes a processing unit of the measurement result display device to execute measurement result display processing. [Background technology]

[0002] The applicant has disclosed an impedance measuring device capable of individually measuring the contact resistance of each of the Hi and Lo source terminals and each of the Hi and Lo sense terminals to a measurement target in the following patent document. In this case, the impedance measuring device disclosed by the applicant includes a Hi source terminal and a Lo source terminal (source terminals for supplying a measurement signal: hereinafter also referred to as "terminals Hc, Lc"), a Hi sense terminal and a Lo sense terminal (sense terminals for detecting a signal: hereinafter also referred to as "terminals Hp, Lp"), a measurement signal source, and a measurement unit.

[0003] In addition, in this impedance measuring device, in a state in which terminals Hc and Hp are connected to one electrode (for example, a positive electrode) of a battery to be measured and terminals Lc and Lp are connected to the other electrode (for example, a negative electrode), the contact resistance R between terminal Hc and the positive electrode is calculated. HC , the contact resistance R between terminal Lc and the negative electrode LC , the contact resistance R between the terminal Hp and the positive electrode HP , and the contact resistance R between the terminal Lp and the negative electrode LP The impedance measuring device is configured to be able to measure the impedance of the measurement target (in this example, the "internal resistance Rx of the battery"). Furthermore, the impedance measuring device is provided with an output section configured as a display device.

[0004] As a result, in the impedance measuring device disclosed by the applicant, the internal resistance Rx of the battery and the contact resistance R between the terminals Hc, Hp and the positive electrode are HC ,RHP , and the contact resistance R between the terminals Lc, Lp and the negative electrode LC ,R LP It is possible to output (display) each of the above. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-076600 A (Pages 8-28, Figures 1-4) Summary of the Invention [Problem to be solved by the invention]

[0006] However, the impedance measuring device disclosed by the applicant has the following problems to be solved. Specifically, as described above, the impedance measuring device disclosed by the applicant measures the internal resistance Rx of the battery to be measured and the contact resistance R between the terminals Hc, Hp and the positive electrode. HC ,R HP , and the contact resistance R between the terminals Lc, Lp and the negative electrode LC ,R LP The above-mentioned items can be displayed (output) by a display device (output unit).

[0007] On the other hand, when this type of measuring device is installed at a manufacturing site for batteries or the like and the quality of the products is judged based on the measurement results, the repeated measurement process for multiple products (batteries) manufactured in sequence can cause the terminals Hc, Lc, Hp, and Lp to gradually wear out or become dirty. In such a state, the measurement results (internal resistance Rx of each product) can be inaccurate, making it difficult to judge the quality of the products based on the measurement results. Therefore, the displayed contact resistance R HC ,R LC ,R HP ,R LPBased on this, it is necessary to maintain a state in which accurate measurement results (internal resistance Rx) can be obtained by checking whether the contact resistance between each terminal Hc, Lc, Hp, Lp and the measurement object (electrode) is within the normal range.

[0008] In this case, in the impedance measuring device disclosed by the applicant, as an example, each time a measurement process is performed on a measurement target (product: battery), the contact resistance R measured in the measurement process is HC ,R LC ,R HP ,R LP The contact resistance R is displayed numerically together with the internal resistance Rx. HC ,R LC ,R HP ,R LP When any of these values ​​fall outside the normal range, the degree of wear of the terminal where such a value was measured and the presence or absence of foreign matter are checked, and if the degree of wear is high or foreign matter is attached, the terminal can be replaced or cleaned, making it possible to restore the internal resistance Rx to a state in which it can be accurately measured (a state in which it can be accurately determined whether the product is good or not).

[0009] In this case, the work of checking the degree of wear of the terminals and the presence or absence of foreign matter, as well as the work of replacing and cleaning the terminals, cannot be performed while the manufacturing line for the measurement object (battery) is in operation. Therefore, it is preferable to perform these tasks at a predetermined time when the manufacturing line is not in operation so as not to interfere with the product manufacturing plan.

[0010] However, even if the contact resistance of any terminal is likely to be outside the normal range in the latest measurement result, it is not possible to determine whether such a value has been measured since the completion of the previous replacement or cleaning work, or whether such a value was suddenly measured. Therefore, even if it is possible to recognize the existence of a terminal whose contact resistance is likely to be outside the normal range, it is difficult to determine at what point in time the terminal will be in a state requiring replacement or cleaning (a state in which a contact resistance outside the normal range will be measured). For this reason, even if a terminal whose contact resistance is measured to be within the normal range (a terminal whose degree of wear and dirt adhesion is within the acceptable range) is a terminal, it is currently replaced with a new terminal or cleaned while the production line is not in operation. Therefore, it is preferable to improve this point.

[0011] In addition, in the impedance measuring device disclosed by the applicant, in order to identify the terminals for which the contact resistances were measured, a configuration is adopted in which the "terminal names" and the "measurement results" are displayed side by side, such as "Hc: XX Ω", "Lc: XX Ω", "Hp: XX Ω" and "Lp: XX Ω". However, for an operator who is unfamiliar with this type of device, it is not easy to identify which of the four terminals is the terminal for which the contact resistance with "Hc: XX Ω" was measured. For this reason, even if confirmation work, replacement work or cleaning work is performed according to the displayed contact resistance, it may take a long time to identify which terminal should be the target of the work. Therefore, it is preferable to improve this point as well.

[0012] The present invention has been made in consideration of the above problems to be solved, and has as its main object to provide a measurement result display device, a measurement system, and a measurement result display processing program that can display the time-dependent change in the measured impedance in an easily identifiable manner. Another object of the present invention is to provide a measurement result display device, a measurement system, and a measurement result display processing program that can easily specify through which measurement terminal the displayed impedance was measured. [Means for solving the problem]

[0013] The measurement result display device according to the present invention is a measurement result display device including a processing unit that executes a measurement result display process for displaying measurement results on a display unit based on measurement result data in which impedance measured by a measurement device is encoded, and the processing unit, in the measurement result display process, selects a plurality of measurement results that satisfy a predetermined comparison condition and are different in time at which the impedance was measured by the measurement device. Each of the measurement targets Based on the measurement result data When the measurement result is displayed on the display unit based on the a first measurement result display screen in which the impedance for each of the measurement result data is arranged in order of the measurement time; The Display it on the display unit.

[0014] The measurement system according to the present invention comprises the above-mentioned measurement result display device and the measurement device, and is configured to generate the measurement result data by the measurement device and display the measurement results by the measurement result display device. Furthermore, the measurement result display processing program according to the present invention is a measurement result display processing program that causes a processing unit of a measurement result display device that has a processing unit that executes a measurement result display process to display the measurement results on a display unit based on measurement result data in which the impedance measured by the measurement device is encoded, and in the measurement result display processing, a plurality of measurement results that satisfy a predetermined comparison condition and have different measurement times of the impedance by the measurement device are displayed on the display unit. Each of the measurement targets Based on the measurement result data When the measurement result is displayed on the display unit based on the For each measurement result data The A first measurement result display screen in which the impedances are arranged in the order of the measurement times is displayed. The The processor executes a process for displaying on the display unit.

[0015] Therefore, according to the measurement result display device, the measurement system, and the measurement result display processing program of the present invention, by referring to the impedance displayed on the first measurement result display screen, it is possible to reliably and easily determine whether or not each impedance has changed over time and at what rate each impedance has changed. This makes it possible to reliably and easily estimate what timing the measurement object will be in a state in which what impedance will be measured. Therefore, for example, by using the measurement result display device, the measurement system, and the measurement result display processing program when checking the state of the measurement terminal based on the contact resistance between the measurement terminal and the measurement object, or when performing replacement or cleaning work, it is possible to suitably specify the appropriate timing for performing such work.

[0016] In addition, in the measurement result display device according to the present invention, the processing unit causes a graph showing the impedance for each of the measurement result data to be displayed on the first measurement result display screen in the measurement result display process. Furthermore, the measurement result display processing program according to the present invention causes the processing unit to execute a process of displaying a graph showing the impedance for each of the measurement result data on the first measurement result display screen in the measurement result display process.

[0017] Therefore, the measurement result display device, measurement system, and measurement result display processing program according to the present invention can more reliably and easily determine whether or not each contact resistance has changed over time and at what rate of change it has changed based on an impedance graph, compared to, for example, displaying the contact resistance values ​​on the first measurement result display screen. This makes it possible to more reliably and easily estimate the state in which the measurement target will be in and what impedance will be measured at what timing.

[0018] In addition, in the measurement result display device according to the present invention, the processing unit, in the measurement result display process, causes the display unit to display a second measurement result display screen in which the impedance for each of the measurement result data is arranged in correspondence with the arrangement of each of the measurement terminal connection parts in the measurement device, based on the multiple types of measurement result data respectively measured by the measurement device via multiple measurement terminals connected to multiple measurement terminal connection parts in the measurement device. Furthermore, in the measurement result display process program according to the present invention, the processing unit executes a process in which the display unit displays a second measurement result display screen in which the impedance for each of the measurement result data is arranged in correspondence with the arrangement of each of the measurement terminal connection parts in the measurement device, based on the multiple types of measurement result data respectively measured by the measurement device via multiple measurement terminals connected to the multiple measurement terminal connection parts in the measurement device.

[0019] Therefore, the measurement result display device, measurement system, and measurement result display processing program according to the present invention can reliably and easily identify through which measurement terminal (which measurement terminal connected to which measurement terminal connection section) the impedance displayed on the second measurement result display screen was measured. Therefore, for example, by using the measurement result display device, measurement system, and measurement result display processing program when checking the state of the measurement terminal based on the contact resistance between the measurement terminal and the measurement object, or when performing replacement or cleaning work, the measurement terminal through which the impedance for which the work is to be performed was measured can be reliably and easily identified, and the work can be performed quickly and reliably.

[0020] In addition, in the measurement result display device of the present invention, the processing unit executes a notification process for identifiably notifying that the impedance to be displayed satisfies the predefined notification condition when displaying the impedance based on the measurement result data that satisfies a predefined notification condition in the measurement result display process. Furthermore, in the measurement result display process program of the present invention, the processing unit executes a notification process for identifiably notifying that the impedance to be displayed satisfies the predefined notification condition when displaying the impedance based on the measurement result data that satisfies a predefined notification condition in the measurement result display process.

[0021] Therefore, according to the measurement result display device, measurement system, and measurement result display processing program of the present invention, it is possible to reliably and easily determine whether the impedance satisfies predetermined notification conditions without constantly monitoring the impedance displayed on the first measurement result display screen or the impedance displayed on the second measurement result display screen. Effect of the Invention

[0022] The measurement result display device, measurement system, and measurement result display processing program of the present invention make it possible to easily identify changes in measured impedance over time. Also, the measurement result display device, measurement system, and measurement result display processing program of the present invention make it easy to identify through which measurement terminal the displayed impedance was measured. [Brief description of the drawings]

[0023] [Figure 1] 1 is a configuration diagram showing the configuration of a measurement device 1. FIG. [Diagram 2] FIG. 2 is a display screen diagram showing an example of a measurement result display screen 20. [Diagram 3] 13 is a display screen diagram showing another example of the measurement result display screen 20. FIG. [Figure 4]2 is a front view of the measurement device 1 with a measurement result display screen 30 displayed on the display unit 5. FIG. [Diagram 5] 1 is a front view of the measurement device 1A with a measurement result display screen 30a displayed on the display unit 5. FIG. [Figure 6] FIG. 2 is a display screen diagram showing an example of a measurement result display screen 20a. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a measurement result display device, a measurement system, and a measurement result display processing program according to the present invention will be described with reference to the accompanying drawings.

[0025] The measurement system 100 shown in FIG. 1 is an example of a "measurement system" and includes a measurement device 1 and a mobile terminal 10. Similar to the impedance measurement device disclosed by the applicant in the aforementioned patent document, the measurement system 100 is configured to measure the internal resistance of the measurement object (a battery, as an example, not shown) and the contact resistance (an example of "impedance") between each measurement terminal and the measurement object (in this example, the battery terminals) and display the measurement results.

[0026] The measuring device 1 integrally comprises a "measuring device" and a "measurement result display device", and constitutes the measuring system 100 of this example, which is an example of a "measurement system", together with the mobile terminal 10 as described above, and also constitutes a "measurement system" by itself. This measuring device 1 comprises a measuring section 2, a communication section 3, an operation section 4, a display section 5, a processing section 6, and a memory section 7. In this case, in the measuring device 1 of this example, the measuring section 2, the operation section 4, the display section 5, the processing section 6, and the memory section 7 together constitute a "measuring device", and the operation section 4, the display section 5, the processing section 6, and the memory section 7 together constitute a "measurement result display device integrally comprising a display section (display section 5)".

[0027] The measurement unit 2, like the impedance measurement device disclosed by the applicant, includes a Hi-side source terminal and a Lo-side source terminal (source terminals for supplying measurement signals: terminals Hc, Lc: an example of "multiple measurement terminals"), a Hi-side sense terminal and a Lo-side sense terminal (sense terminals for detecting signals: terminals Hp, Lp: another example of "multiple measurement terminals"), and a measurement signal source (all not shown), and is configured to be able to execute a measurement process for measuring the internal resistance of the battery under the control of the processing unit 6, as described below. In this case, the measurement device 1 of this example is configured to be able to execute a measurement process for measuring the internal resistance of the battery under the control of the processing unit 6, as shown in FIG. 4, by connecting the above-mentioned terminals Hc, Lc, Hp, and Lp to the measurement terminal connections 2a to 2d, respectively, and to execute a measurement process for measuring a predetermined electrical parameter via each of the terminals Hc, Lc, Hp, and Lp.

[0028] Specifically, in the measurement device 1 of this example, the measurement unit 2 is configured to be able to execute a process as a "measurement process" in which the measurement unit 2 measures the contact resistance between the terminal Hc and the positive electrode of the battery, the contact resistance between the terminal Lc and the negative electrode of the battery, the contact resistance between the terminal Hp and the positive electrode, and the contact resistance between the terminal Lp and the negative electrode together with the internal resistance of the battery, and generates measurement result data Dma encoding the contact resistance between the terminal Hc and the positive electrode, measurement result data Dmb encoding the contact resistance between the terminal Lc and the negative electrode, measurement result data Dmc encoding the contact resistance between the terminal Hp and the positive electrode, measurement result data Dmd encoding the contact resistance between the terminal Lp and the negative electrode, and measurement result data Dmr encoding the internal resistance of the battery, and outputs the measurement result data to the processing unit 6. In this example, the above measurement result data Dma to Dmd correspond to "measurement result data in which the impedance measured by the measurement device is encoded."

[0029] The communication unit 3 is, for example, configured as a wireless communication module conforming to the Bluetooth (registered trademark) standard, and is configured to be able to transmit and receive various data to and from various Bluetooth communication-compatible devices such as the mobile terminal 10 under the control of the processing unit 6, as described below. The operation unit 4 is provided with operation switches capable of setting the operating conditions of the measurement device 1, issuing an instruction to start / stop the measurement process by the measurement unit 2, and switching between various display screens to be displayed on the display unit 5, as described below. The display unit 5 is an example of a "display unit", and displays various display screens under the control of the processing unit 6, such as an operating condition setting screen (not shown) for setting the operating conditions of the measurement device 1, a measurement result display screen 20 (see FIGS. 2 and 3), and a measurement result display screen 30 (see FIG. 4).

[0030] The processing unit 6 is an example of a "processing unit" and generally controls the measuring device 1 according to a processing program Dp (an example of a "measurement result display processing program"). Specifically, the processing unit 6 controls the measuring unit 2 to execute the above-mentioned measurement processing, and stores the measurement result data Dma to Dmd, Dmr output from the measuring unit 2 in the storage unit 7. The processing unit 6 also causes the display unit 5 to display the resistance value (internal resistance in the battery to be measured) encoded in the measurement result data Dmr. The processing unit 6 also causes the display unit 5 to display one of the measurement result display screens 20 and 30, and causes the display unit 5 to display the resistance value (contact resistance between each terminal and electrode) encoded in the measurement result data Dma to Dmd (an example of a "measurement result display processing"). In this case, the measuring device 1 of this example is configured such that, as an example, the measurement unit 2 is operated to select one of the measurement result display screens (not shown) that displays the internal resistance and the measurement result display screens 20 and 30, and the selected display screen can be displayed on the display unit 5.

[0031] Moreover, the processing unit 6 in the measurement device 1 of this example is configured to generate display data Dd in parallel with the display of the measurement result display screens 20, 30, etc. on the display unit 5, and to transmit the generated display data Dd from the communication unit 3 to the mobile terminal 10, thereby allowing the display unit of the mobile terminal 10 to display a display screen (not shown) similar to the measurement result display screens 20, 30, etc. In this case, the measurement device 1 of this example is configured not only to display a display screen similar to the measurement result display screen displayed on the display unit 5 of the measurement device 1 on the display unit of the mobile terminal 10, but also to display a display screen similar to the measurement result display screen 30 on the display unit of the mobile terminal 10 when the measurement result display screen 20 is displayed on the display unit 5 of the measurement device 1, by setting the operating conditions of the measurement device 1 in advance, or to display a display screen similar to the measurement result display screen 20 on the display unit 5 of the measurement device 1 when the measurement result display screen 30 is displayed on the display unit 5 of the measurement device 1.

[0032] The storage unit 7 stores a processing program Dp capable of identifying the procedure of various processes executed by the processing unit 6, the calculation results of the processing unit 6, and the above-mentioned measurement result data Dma to Dmd, Dmr, and the like.

[0033] On the other hand, the mobile terminal 10 is a portable information processing terminal capable of transmitting and receiving various data to and from Bluetooth-compatible devices such as the measuring device 1, and is, for example, configured as a general-purpose tablet terminal or smartphone installed with a dedicated data processing program for executing display of a display screen based on the display data Dd transmitted from the measuring device 1. In this case, in a configuration in which a display screen similar to the measurement result display screen 20, 30 is displayed on the display unit 5 of the measuring device 1 in parallel with the display of the measurement result display screen 20, 30, etc. on the display unit 5 of the measuring device 1 as in this example, the program for displaying the screen installed on the mobile terminal 10 together with the above-mentioned processing program Dp constitutes a "measurement result display processing program," and the processing unit of the mobile terminal 10 that displays a display screen similar to the measurement result display screen 20, 30 on the display unit of the mobile terminal 10 according to this program together with the processing unit 6 of the measuring device 1 constitutes a "processing unit."

[0034] Next, as an example of how to use the measurement system 100, a method will be described in which the measurement system 100 is installed as one piece of manufacturing equipment on a battery production line, and the measurement device 1 measures the internal resistance of batteries that are produced in sequence, thereby monitoring the measurement results (determining whether the batteries are good or bad).

[0035] Note that the moving mechanism that brings the terminals Hc, Lc, Hp, and Lp into contact with and away from the electrodes (positive and negative electrodes) of the battery, and the transport mechanism that transports the battery to the measurement processing position, etc., are configured similarly to those devices in various known manufacturing facilities, and therefore illustrations and detailed descriptions are omitted. Also, installation of the measuring device 1 on the manufacturing line, installation of the above-mentioned program in the mobile terminal 10, pairing for wireless communication between the measuring device 1 (communication unit 3) and the mobile terminal 10, and other operations are assumed to be completed, and descriptions thereof are omitted.

[0036] In a manufacturing line where this measuring device 1 (measurement system 100) is installed, each time a new battery is manufactured, its internal resistance is measured by the measuring device 1 and displayed on the display unit 5. Specifically, the terminals Hc, Lc, Hp, and Lp of the measuring device 1 are brought into contact with both electrodes of the manufactured battery, and the contact resistance and internal resistance are measured by the measuring unit 2 via these terminals, and the measured internal resistance is encoded to generate measurement result data Dma to Dmd and Dmr.

[0037] In addition, the measuring device 1 adopts a configuration in which, as an example, a measurement result display screen (not shown) that displays the "internal resistance of the battery" measured sequentially is displayed as an initial display screen. Therefore, the processing unit 6 displays the internal resistance coded in the measurement result data Dmr output from the measuring unit 2 on the measurement result display screen of the display unit 5 according to the processing program Dp. By referring to this internal resistance, it is possible to identify whether the manufactured battery is good or bad. Although detailed explanation and illustration are omitted, the measuring device 1 of this example adopts a configuration in which, when the internal resistance measured as described above exceeds a preset normal judgment value, the internal resistance is displayed flashing on the display unit 5 and an alarm sound is generated from a speaker (not shown). Therefore, it is possible to reliably and easily identify a defective battery in which a large internal resistance exceeding the normal judgment value is measured.

[0038] Furthermore, in this measuring device 1 (measurement system 100), instead of the above-mentioned measurement result display screen that displays the internal resistance of the measurement target (battery), it is possible to display a measurement result display screen 20 shown in Fig. 2 on the display unit 5 by operating the operation unit 4. This measurement result display screen 20 is an example of a "first measurement result display screen" and has a screen configuration that displays, in order of measurement time, the "contact resistance between each terminal and each electrode" for each of the multiple measurement result data Dma to Dmd (an example of "multiple measurement result data that satisfy a predefined comparison condition and whose impedance was measured by the measuring device at different times") generated by each measurement process for each battery manufactured in sequence on a manufacturing line on which the measuring device 1 is installed.

[0039] Specifically, the measurement result display screen 20 displays measurement result display 21a, which is a graph (in this example, a line graph) that can identify the contact resistance between terminal Hc and the positive electrode for each measurement time (for each battery being measured), measurement result display 21b, which is a graph (line graph) that can identify the contact resistance between terminal Lc and the negative electrode for each measurement time, measurement result display 21c, which is a graph (line graph) that can identify the contact resistance between terminal Hp and the positive electrode for each measurement time, and measurement result display 21d, which is a graph (line graph) that can identify the contact resistance between terminal Lp and the negative electrode for each measurement time (hereinafter, when measurement result displays 21a to 21d are not to be distinguished from one another, they are also referred to as "measurement result display 21"). In this case, as an example, the letters "Hc" are displayed to the right of measurement result display 21a so that it can be identified that it is showing the value for terminal Hc, the letters "Lc" are displayed to the right of measurement result display 21b so that it can be identified that it is showing the value for terminal Lc, the letters "Hp" are displayed to the right of measurement result display 21c so that it can be identified that it is showing the value for terminal Hp, and the letters "Lp" are displayed to the right of measurement result display 21d so that it can be identified that it is showing the value for terminal Lp.

[0040] The measurement result display screen 20 also displays a warning level display 22a indicating a preset first warning value (a value that is within the normal range but should warn that a slightly high contact resistance has been measured) and a warning level display 22b indicating a preset second warning value (a value that is within the normal range but is higher than the first warning value and should warn that a contact resistance has been measured that requires immediate confirmation of the terminal at which such a value has been measured). Furthermore, the measurement result display screen 20 displays a cursor display 23 for selecting a measurement value at any time point from the contact resistances for each measurement time displayed by the measurement result displays 21a to 21d (graphs). Note that, as an example, the cursor display 23 is automatically moved to a position for selecting the position of the latest measurement value (contact resistance) (i.e., the end of the measurement result displays 21a to 21d), and can also be moved to a position for selecting an arbitrary measurement time (an arbitrary measurement target) by operating the operation unit 4.

[0041] In this case, in the example shown in FIG. 2, the measurement result display screen 20 displays the measurement result displays 21a to 21d for each of the measurement result data Dma to Dmd generated during the measurement process for each battery manufactured sequentially from the time when the manufacturing line was operated on November 8, 2020. Also, in the example shown in the figure, by referring to the measurement result displays 21a to 21c, it is possible to specify that the contact resistance for the terminals Hc, Lc, and Hp has not changed significantly, and by referring to the measurement result display 21d, it is possible to specify that the contact resistance for the terminal Lp is gradually increasing. On the other hand, in the example shown in the figure, it is possible to intuitively grasp that the contact resistance for all of the terminals Hc, Lc, Hp, and Lp is lower than the first warning value. Therefore, it is possible to reliably and easily specify that it is not necessary to immediately perform a confirmation operation, replacement operation, or cleaning operation for any of the terminals.

[0042] On the other hand, while repeating the measurement process for each battery, the contact resistance between the terminal Lp and the negative electrode, which has been gradually increasing, may reach a first warning value (an example of "displaying impedance based on measurement result data satisfying a predefined notification condition"). In this case, as shown in FIG. 3, a measurement result display 21d in which the contact resistance has reached the warning level display 22a is displayed on the measurement result display screen 20, the letters "Lp" are displayed in a flashing manner, and a warning sound is generated from a speaker (not shown) (an example of "notification process for identifiably notifying that the impedance satisfies a predefined notification condition"). Note that instead of (or in addition to) such notification process, a process may be executed in which the measurement result display 21 that has reached the warning level display 22a is displayed in a flashing manner, or a display color or line type that is different from a state (normal state) in which the notification process is not executed is displayed.

[0043] A worker who sees the display on the measurement result display screen 20 or hears the warning sound understands that the contact resistance measured through the terminal Lp has reached the first warning value based on the measurement result display 21d, which has reached the warning level display 22a, and the blinking display of the letters "Lp." At this time, since the first warning value is within the range of normal values, when the degree of change in the contact resistance specified based on the measurement result display 21d is similar to the degree of change before that (when the latest measured value is located on the extension of the slope of the graph of the measured value before that), it is determined whether the contact resistance will deviate from the range of normal values ​​even if the confirmation work, replacement work, or cleaning work is left without being performed until the production line is out of operation, and if there is no risk of it deviating, it is determined that no work will be performed.

[0044] On the other hand, in the above example, when it is determined that the contact resistance may fall outside the normal range if no work is performed until the production line is taken out of operation, when stopping the production line will not cause any major problems, or when, unlike the example of Figure 3, the degree of change in contact resistance identified based on measurement result display 21d suddenly increases differently from the previous degree of change (when the latest measurement value is at a value higher than the extension of the slope of the graph of the measurement values ​​measured previously: for example, when the latest measurement value suddenly changes to a value that exceeds the second warning value), confirmation, replacement, or cleaning work is performed on the terminals for which a large contact resistance was measured.

[0045] In this case, the display is changed from the measurement result display screen 20 to the measurement result display screen 30 by operating the operation unit 4 while the cursor display 23 is displayed at the position of the latest measurement value where the above-mentioned "notification process" was executed (the end of the measurement result displays 21a to 21d). This measurement result display screen 30 is an example of a "second measurement result display screen", and has a screen configuration in which a measurement result display 31a based on the measurement result data Dma for terminal Hc, a measurement result display 31b based on the measurement result data Dmb for terminal Lc, a measurement result display 31c based on the measurement result data Dmc for terminal Hp, and a measurement result display 31d based on the measurement result data Dmd for terminal Lp are displayed side by side in accordance with the arrangement on the front panel of the measurement device 1 of the measurement terminal connectors 2a to 2d to which the terminals Hc, Lc, Hp, and Lp are connected (hereinafter, when the measurement result displays 31a to 31d are not distinguished from each other, they are also referred to as "measurement result displays 31").

[0046] In this case, unlike the measuring device 1 in which the measurement terminal connections 2a to 2d are arranged as shown in Figure 4, when the measurement terminal connections 2a to 2d are arranged horizontally as in the measuring device 1A shown in Figure 5, a screen configuration is adopted in which the measurement result displays 31b, 31d, 31c, and 31a are displayed horizontally in response to the arrangement on the front panel of the measurement terminal connections 2b, 2d, 2c, 2a to which the terminals Lc, Lp, Hp, and Hc are connected, as in the measurement result display screen 30a shown in the same figure (another example of the "second measurement result display screen").

[0047] 4, the measurement result display screen 30 displays an arrangement diagram 32 for visually understanding the contact state between each terminal Hc, Lc, Hp, and Lp and the battery to be measured together with each measurement result display 31a to 31d. Specifically, the arrangement diagram 32 is, for example, composed of a design showing the battery, a design showing each terminal Hc, Lc, Hp, and Lp (arrows in the example of the figure), a design showing each contact resistance, and the characters "Hc" indicating that the measurement result display 31a is the contact resistance for each terminal Hc, the characters "Lc" indicating that the measurement result display 31b is the contact resistance for each terminal Lc, the characters "Hp" indicating that the measurement result display 31c is the contact resistance for each terminal Hp, and the characters "Lp" indicating that the measurement result display 31d is the contact resistance for each terminal Lp.

[0048] In addition, in the measurement device 1A in which the measurement result display screen 30a shown in FIG. 5 is displayed, instead of the layout diagram 32 of the measurement result display screen 30 displayed in the measurement device 1, the layout diagram 32a shown in the same figure is displayed within the measurement result display screen 30a.

[0049] On the other hand, in this example, when the contact resistance for terminal Lp has reached the first warning value, the measurement result display screen 20 is switched to the measurement result display screen 30, and the above-mentioned letters "Lp" are displayed flashing, and a warning sound is emitted from a speaker (not shown) (another example of "announcement process for identifiably notifying that the impedance satisfies a predefined notification condition"). Note that instead of (or in addition to) such a notification process, a process can be executed in which the measurement result display 31 that has reached the warning level display 22a is displayed flashing, or the display is changed to a different display color or font type from the normal state.

[0050] An operator viewing this measurement result display screen 30 will understand, based on the blinking display of the letters "Lp" on the measurement result display screen 30 and the value of the measurement result display 31d, that the contact resistance of the terminal (terminal Lp in this example) connected to the measurement terminal connection part 2d arranged at the position corresponding to the measurement result display 31d among the measurement terminal connection parts 2a to 2d has increased. Therefore, an operator can quickly start checking, replacing or cleaning the terminal Lp connected to the measurement result display 21d, and the contact resistance of the terminal Lp can be restored to a sufficiently low value.

[0051] The procedure for determining the contact resistance for each of the terminals Hc, Lc, Hp, and Lp with reference to the measurement result display screens 20 and 30 displayed on the display unit 5 has been described above, but as described above, in the measurement system 100 of this example, it is possible to display a display screen similar to the measurement result display screens 20 and 30 on the display unit of the mobile terminal 10 by transmitting display data Dd from the measurement device 1 to the mobile terminal 10. Therefore, in the measurement system 100 of this example, the contact resistance for each of the terminals Hc, Lc, Hp, and Lp can also be determined by referring to the display unit of the mobile terminal 10 (a display screen similar to the measurement result display screens 20 and 30) instead of the display unit 5 (measurement result display screens 20 and 30) of the measurement device 1.

[0052] Thus, in this measuring device 1, in a "measurement result display process" in which the processing unit 6 causes the display unit 5 to display the measurement results based on the measurement result data Dma-Dmd in which the impedance measured by the measuring unit 2 (in this example, the contact resistance between each terminal and the electrode of the battery being measured) is encoded, the processing unit 6 causes the display unit 5 to display a measurement result display screen 20 including measurement result displays 21a-21d in which the contact resistance for each measurement result data Dma-Dmd is arranged in order of measurement time based on a plurality of measurement result data Dma-Dmd that satisfy a predefined comparison condition and have different measurement times of the impedance by the measuring unit 2. Also, this measuring system 100 (measuring device 1) includes a "measurement result display device" and a "measuring device." Furthermore, the processing program Dp causes the processing unit 6 of the measuring device 1 to execute the above-mentioned "measurement result display process."

[0053] Therefore, according to the measuring device 1, the measuring system 100, and the processing program Dp, by referring to the measurement result displays 21a to 21d displayed on the measurement result display screen 20, it is possible to reliably and easily identify whether or not each contact resistance has changed over time and at what rate each contact resistance has changed. This makes it possible to reliably and easily estimate at what timing the measurement target will be in a state in which what contact resistance will be measured. Therefore, for example, by using the measuring device 1, the measuring system 100, and the processing program Dp when checking the state of a terminal based on the contact resistance between the terminal and the electrode, or when performing replacement or cleaning work, it is possible to suitably specify the appropriate timing for performing such work.

[0054] Furthermore, in the "measurement result display process", the processing unit 6 of the measuring device 1 displays graphs (measurement result displays 21a-21d) indicating the contact resistance for each of the measurement result data Dma-Dmd on the measurement result display screen 20. Furthermore, the processing program Dp causes the processing unit 6 of the measuring device 1 to execute the above-mentioned "measurement result display process".

[0055] Therefore, according to the measurement device 1, the measurement system 100, and the processing program Dp, for example, it is possible to more reliably and more easily specify whether or not each contact resistance has changed over time and at what rate of change it has changed based on the contact resistance graphs (measurement result displays 21a to 21d) compared to displaying the contact resistance values ​​on the "first measurement result display screen." This makes it possible to more reliably and more easily estimate the state in which the measurement target will be in and at what timing the contact resistance will be measured.

[0056] In addition, in the measurement device 1, the processing unit 6, in a "measurement result display process", causes the display unit 5 to display a measurement result display screen 30 including measurement result displays 31a-31d in which the contact resistance for each of the measurement result data Dma-Dmd is arranged in correspondence with the arrangement of each of the measurement terminal connections 2a-2d in the measurement device 1, based on each of the measurement result data Dma-Dmd measured by the measurement unit 2 via the multiple terminals Hc, Lc, Hp, Lp connected to the multiple measurement terminal connections 2a-2d in the measurement unit 2. In addition, the processing program Dp causes the processing unit 6 of the measurement device 1 to execute the above-mentioned "measurement result display process".

[0057] Therefore, according to the measurement device 1, the measurement system 100, and the processing program Dp, it is possible to reliably and easily identify through which terminal Hc, Lc, Hp, Lp (which terminal Hc, Lc, Hp, Lp connected to which measurement terminal connection portion 2a-2d) the measurement result display 31a-31d displayed on the measurement result display screen 30 was measured. Therefore, for example, by using the measurement device 1, the measurement system 100, and the processing program Dp when checking the state of the terminal based on the contact resistance between the terminal and the electrode, or when performing replacement or cleaning work, it is possible to reliably and easily identify the terminal whose contact resistance was measured and for which the work should be performed, so that the work can be performed quickly and reliably.

[0058] Furthermore, in this measuring device 1, when the processing unit 6 displays the contact resistance based on the measurement result data Dma-Dmd that satisfies the "predefined notification condition" in the "measurement result display process", it executes a "notification process" (in this example, blinking characters indicating the terminal name of the terminal or characters indicating the measured contact resistance) that identifiably notifies that the displayed contact resistance satisfies the "predefined notification condition". Furthermore, this processing program Dp causes the processing unit 6 of the measuring device 1 to execute the above-mentioned "measurement result display process".

[0059] Therefore, according to this measuring device 1, measuring system 100 and processing program Dp, it is possible to reliably and easily determine whether the contact resistance satisfies the "predetermined notification condition" without constantly monitoring the measurement result displays 21a to 21d displayed on the measurement result display screen 20 and the measurement result displays 31a to 31d displayed on the measurement result display screen 30.

[0060] The configurations of the "measurement result display device" and "measurement system" and the processing contents of the "measurement result display processing program" are not limited to the above examples. For example, the configuration and processing contents for displaying a line graph of the contact resistance (measurement result displays 21a to 21d) on the measurement result display screen 20 corresponding to the "first measurement result display screen" have been described as an example, but instead of such a configuration and processing contents, a configuration and processing contents for displaying the contact resistance as a bar graph on the "first measurement result display screen" or a configuration and processing contents for displaying the contact resistance as a numerical value on the "first measurement result display screen" can also be adopted (not shown).

[0061] 6, a configuration and processing content may be adopted in which predicted value displays 24a-24d indicating contact resistances (predicted values) predicted to be measured in a measurement process to be executed later based on the state of change in a predetermined number of contact resistances including the latest measured value are displayed following the measurement result displays 21a-21d. In this case, the predicted values ​​indicated by the predicted value displays 24a-24d may be calculated based on the latest measurement result data Dma-Dmd and a predetermined number of measurement result data Dma-Dmd generated (measured) immediately before, based on the rate of change in the values ​​of each of the measurement result data Dma-Dmd, for example.

[0062] Furthermore, the configuration and processing procedure for switching between the measurement result display screen 20 corresponding to the "first measurement result display screen" and the measurement result display screen 30 corresponding to the "second measurement result display screen" by operating the operation unit 4 has been described as an example, but it is also possible to adopt a configuration and processing procedure for automatically switching between the "first measurement result display screen" and the "second measurement result display screen" at regular time intervals, or a configuration and processing procedure for displaying the "first measurement result display screen" and the "second measurement result display screen" side by side. Also, it is also possible to adopt a configuration and processing procedure for displaying only the "first measurement result display screen" (not displaying the "second measurement result display screen"), or a configuration and processing procedure for displaying only the "second measurement result display screen" (not displaying the "first measurement result display screen").

[0063] In addition, although the configuration of the measuring device 1 which integrally comprises the "measurement result display device" and the "display unit" has been described as an example, it is also possible to adopt a configuration in which a "first measurement result display screen" or a "second measurement result display screen" is displayed on a "display unit (display device)" which is an external device separate from the "measurement result display device". In addition, although the configuration of the measuring device 1 which integrally comprises the "measurement result display device" and the "measurement device" has been described as an example, it is also possible to adopt a configuration in which a "first measurement result display screen" or a "second measurement result display screen" is displayed based on "measurement result data" generated by the "measurement device" which is an external device separate from the "measurement result display device".

[0064] In addition, the configuration and processing contents have been described as an example in which products of the same type manufactured in sequence (batteries in this example) are used as the measurement objects and the contact resistance (impedance) measured during the measurement process for each product is displayed (a configuration and processing contents in which multiple measurement objects are measured in sequence and the contact resistance (impedance) for each measurement object is displayed), but it is also possible to adopt a configuration and processing contents in which the "impedance" measured during multiple measurement processes for a single measurement object is displayed (a configuration and processing contents in which one measurement object is repeatedly measured and multiple impedances for one measurement object are displayed). [Explanation of symbols]

[0065] 100 Measurement System 1,1A Measuring device 2 Measuring part 2a~2d Measurement terminal connection part 3. Communications Department 4 Control section 5 Display section 6 Processing section 7 Memory section 10 Mobile devices 20,20a,30,30a Measurement result display screen 21a~21d,31a~31d Measurement result display 22a, 22b Warning level display 23 Cursor display 24a~24d Prediction value display 32, 32a Layout diagram Dd Display data Dma~Dmd,Dmr measurement result data Dp processing program

Claims

1. A measurement result display device including a processing unit that executes a measurement result display process for displaying a measurement result on a display unit based on measurement result data in which an impedance measured by a measuring device is encoded, The processing unit, in the measurement result display process, when displaying the measurement results on the display unit based on the measurement result data for each of a plurality of measurement objects that satisfy predetermined comparison conditions and whose impedances were measured by the measuring device at different times, displays on the display unit a first measurement result display screen in which the impedances for each of the measurement result data are arranged in order of their measurement times.

2. 2 . The measurement result display device according to claim 1 , wherein the processing unit, in the measurement result display process, displays a graph showing the impedance for each of the measurement result data on the first measurement result display screen.

3. 3. The measurement result display device according to claim 1 or 2, wherein the processing unit, in the measurement result display process, causes the display unit to display a second measurement result display screen in which the impedance for each of the measurement result data is arranged in correspondence with the arrangement of each of the measurement terminal connection parts in the measurement device, based on multiple types of the measurement result data measured by the measurement device via multiple measurement terminals connected to multiple measurement terminal connection parts in the measurement device.

4. The measurement result display device according to any one of claims 1 to 3, wherein the processing unit, when displaying the impedance based on the measurement result data that satisfies a predefined notification condition in the measurement result display process, executes a notification process that identifiably notifies that the impedance to be displayed satisfies the predefined notification condition.

5. A measurement system comprising the measurement result display device according to any one of claims 1 to 4 and the measurement device, and configured to generate the measurement result data by the measurement device and display the measurement results by the measurement result display device.

6. A measurement result display processing program for causing a processing unit of a measurement result display device, the processing unit executing a measurement result display process for displaying a measurement result on a display unit based on measurement result data in which an impedance measured by a measurement device is encoded, to execute the measurement result display process, A program for measurement result display processing that causes the processing unit to execute a process in which, when the measurement results are displayed on the display unit based on the measurement result data for each of a plurality of measurement objects that satisfy a predetermined comparison condition and whose impedances were measured by the measuring device at different times, the processing unit displays on the display unit a first measurement result display screen in which the impedances for each of the measurement result data are arranged in order of their measurement times.

7. 7. The measurement result display processing program according to claim 6, wherein the measurement result display processing causes the processing unit to execute a process of displaying a graph showing the impedance for each of the measurement result data on the first measurement result display screen.

8. 8. The program for measurement result display processing according to claim 6 or 7, which causes the processing unit to execute a process of displaying on the display unit a second measurement result display screen in which the impedance for each of the measurement result data is arranged in correspondence with the arrangement of each of the measurement terminal connection parts in the measurement device, based on multiple types of the measurement result data respectively measured by the measurement device via multiple measurement terminals connected to multiple measurement terminal connection parts in the measurement device.

9. A program for measurement result display processing as described in any one of claims 6 to 8, which causes the processing unit to execute a notification process that, when displaying the impedance based on the measurement result data that satisfies a predefined notification condition, identifiably notifies that the impedance to be displayed satisfies the predefined notification condition in the measurement result display process.

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